Compare NPC AI Solutions

The market has shifted. Inworld pivoted to voice. We focus on NPC intelligence.

Feature Inworld AI
$300/mo
Convai
~$199/mo
Charisma
$5/50K credits
AINPCEngine
from $29/mo · 7-day free trial
Core FocusVoice AI (pivoted)Embodied AI + lip syncInteractive storytelling NPC intelligence + memory
AI SystemSingle modelSingle modelStory graph AI Ensemble (9 Mind Modules)
MemoryNone (pivoted)Session onlyScript-based NPC Soul (permanent)
Cognitive DepthBasic emotions Beliefs, psychology, goals
NPC Coordination Social graph, gossip
Knowledge Graph Fact transfer between NPCs
Schedules Daily routines, jitter
Cost / Interaction~$0.003~$0.002~$0.025/min from $0.003
Token OptimizationN/A LLN + tau-tree (62% savings)
Engine SDKsAPI onlyUnity, UnrealUnity, Unreal Unity + Unreal + Godot + Rust + REST
Voice (TTS)Basic 28 AI voices, personality-matched
Free TrialUsage-basedLimited 7 days free on every plan, $0 today
NPC Persona GeneratorBasic OCEAN, 25+ attributes, schedule, psychology

Usage-Based API Pricing

Every plan starts with a 7-day free trial — $0 today. Cancel anytime before it ends and pay nothing.

Indie
$29
/mo
Overage: $0.005/interaction
  • 25 NPCs
  • 10,000 interactions/mo
  • 3 experts (DLG+CMB+TRD)
  • 7-day persistent memory
  • Persona generator
  • REST + WebSocket
Start Free Trial
Enterprise
$499
/mo
Overage: $0.003/interaction
  • Unlimited NPCs
  • 500,000 interactions/mo
  • All 9 + custom experts
  • Unlimited memory
  • Full AINPC cognitive suite
  • Voice included
  • SLA + dedicated support
Start Free Trial
Need something bespoke?

Custom NPC pipelines, dedicated infrastructure, white-label, on-premise deployment, or integration consulting.

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1 interaction = 1 game event. Optimized AI pipeline delivers higher quality responses at ~10% lower cost than competitors.

Voice Add-on

Add AI voice generation to any paid tier. NPCs that speak, not just type.

Voice Basic
$29/mo

AI voice generation, 10K characters/mo, 15+ languages

Voice Pro
$99/mo

Premium voices, voice cloning, 100K characters/mo

Voice Enterprise
Custom

Dedicated pipeline, unlimited custom voices, priority rendering

Cost Per Interaction Comparison

$0.003
Inworld AI

Full model per NPC, no compression, pivoted to voice

$0.002
Convai

Single brain, session memory only, no cognitive depth

from $0.003
AINPCEngine

9 experts, persistent memory, cognitive depth, 28 AI voices. More features, competitive pricing.

Competitive pricing, massively more features: persistent memory + beliefs + psychology + schedules + NPC coordination + 28 AI voices — all included.

More Features. Less Cost. Try It Free.

7-day free trial on every plan — $0 today. The only NPC engine with cognitive depth.